You share images and videos (yes, you can share videos there, in case you hadn’t heard) and allow people to share and comment on them, so Flickr fits into the minimum criteria for being considered a social media site. With that out of the way, why is the site designed to do this:

When Imgur.com first hit the scene a year ago, it quickly became the “hip” way to post, host, and share images on Reddit. Digg took notice and it soon became the most popular image site there as well.

A year later, one thing is certain – Imgur’s numbers as a result are nothing short of amazing. While these numbers are nothing compared to more well-known image sites such as Flickr, Photobucket, or Imageshack, it is still impressive considering that the traffic is almost entirely social media driven.